133818458 has 8 divisors (see below), whose sum is σ = 212535252. Its totient is φ = 62973376.

The previous prime is 133818371. The next prime is 133818473. The reversal of 133818458 is 854818331.

It can be written as a sum of positive squares in 2 ways, for example, as 132871729 + 946729 = 11527^2 + 973^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1967885 + ... + 1967952.

Almost surely, 2^133818458 is an apocalyptic number.

133818458 is a deficient number, since it is larger than the sum of its proper divisors (78716794).

133818458 is a wasteful number, since it uses less digits than its factorization.

133818458 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3935856.

The product of its digits is 92160, while the sum is 41.

The square root of 133818458 is about 11567.9928250324. The cubic root of 133818458 is about 511.4917976750.

The spelling of 133818458 in words is "one hundred thirty-three million, eight hundred eighteen thousand, four hundred fifty-eight".